Azuma Kunieda is a psychologist and friend of Yoshihiko Misugi who appears exclusively in the television special
Kamen Rider Agito Special: A New Transformation. He nursed Shouichi back to health after he washed ashore and would later place him in the care of Yoshihiko Misugi. A year later, he visits the Misugi household to catch up with Shouichi, who has to quickly leave when he senses an Unknown, with Kunieda following to watch the battle. Shouichi soon attacks Kunieda when he loses control in Burning Form, causing Shouichi to flee in fear of his powers. Catching up to Shouichi, Kunieda reveals that his son also began evolving into an Agito and committed suicide because of it. Kunieda restores Shouichi's confidence by telling him not to lose hope and reminding him of the clear skies he saw while in the hospital, which allows Shouichi to fully master Burning Form's power and evolve into Shining Form. Sayaka Kahara is portrayed by .
Rei Motoki is a boy gifted with psychic abilities who appears exclusively in the film
Kamen Rider Agito the Movie: Project G4. He, like most children in the Japan Ground Self-Defense Force's psychic educational facility, was orphaned at a young age. Rei Motoki is portrayed by .
Risa Fukami is a captain of the Japan Ground Self-Defense Force who appears exclusively in the film
Kamen Rider Agito the Movie: Project G4. Assigned to the G3 Unit, she steals the data of the G4 System from Ozawa's computer to create the G4 suit, intending to continue the JSDF's experiments and mass-produce the G4 System. She is mauled to death by the Ant Lords. Risa Fukami is portrayed by .
Shiro Mizuki is a second lieutenant of the Japan Ground Self-Defense Force who appears exclusively in the film
Kamen Rider Agito the Movie: Project G4. A jaded man obsessed with the concept of embracing death, he becomes , wielding the handgun and the large missile launcher. The G4 suit utilizes a belt, which displays a battery/status gauge on the buckle. The operator can also plug the Gigant launcher into the side of the belt to power and fire it. Ozawa originally shelved the G4 system after deeming it too dangerous for normal humans, as it uses the mind of a person with psychic abilities as the basis for its onboard predictive AI, making it more powerful than the one installed on G3-X. This system places intense strain on the suit's operator with extended use, which killed several prior test subjects and ultimately leads to Mizuki's own death as he battles Makoto in G3-X. The suit's AI takes over soon afterward, attempting to rise and continue the battle, but Makoto destroys it for good. Shiro Mizuki is portrayed by .
Ruriko Aoi is a police officer who appears exclusively in the film
Agito: Psychic War. As a member of the Tokyo Metropolitan Police Department's G Unit, she becomes where she is equipped with a back-mounted flight unit and dual wields a pair of handguns. The G6 System, like its predecessors, utilizes a belt, which displays a battery/status gauge on the buckle. As a secondary infected person compatible with the Agito factor, she gains pyrokinesis and the ability to transform into . Prior to
Psychic War, Ruriko appeared as a cameo in the thirty-second episode of
Kamen Rider ZEZTZ. Ruriko Aoi is portrayed by .
Kijima and Kagawa and are police officers who appear exclusively in the film
Agito: Psychic War. As members of the Tokyo Metropolitan Police Department's G Unit, Kagawa and Kijima becomes Kamen Riders G3-X and G3 respectively. As secondary infected people incompatible with the Agito factor, they are hospitalized due to necrosis throughout their bodies. Kijima and Kagawa are portrayed by and .
Rouge is a drag queen and primary infected person of the Agito factor who has telekinesis and teleportation capabilities and appears exclusively in the film
Agito: Psychic War. Rouge in his Gill Agito form is destroyed by G7. Rouge is portrayed by .
Haruma Kitou is a former nursery teacher and primary infected person of the Agito factor who has pyro- and cryokinesis and appears exclusively in the film
Agito: Psychic War. Kitou in his Gill Agito form is destroyed by G7. Haruma Kitou is portrayed by .
Shibukawa is a primary infected person of the Agito factor who has electrokinesis and appears exclusively in the film
Agito: Psychic War. Shibukawa in her Gill Agito form is destroyed by G7. Shibukawa is portrayed by .
Hayami is a primary infected person of the Agito factor who has chronokinesis and the ability to transform parts of his body into metal and appears exclusively in the film
Agito: Psychic War. Hayami in his Gill Agito form is destroyed by G7. Hayami is portrayed by .
Kurotani is a secondary infected person compatible with the Agito factor who has the ability to fire bullets from his hands, cooperates with the G Unit, and appears exclusively in the film
Agito: Psychic War. Kurotani is portrayed by .
Oyama is a leader among the inmates in the prison, where Makoto Hikawa is incarcerated, and primary infected person of the Agito factor who has the ability to become invisible and appears exclusively in the film
Agito: Psychic War. Oyama is portrayed by .
Hiraoka is a cellmate with Makoto Hikawa who appears exclusively in the film
Agito: Psychic War. Hiraoka is portrayed by
Kasumi Murano is Tōru Hōjō's ex-fiancée who was murdered by Rouge two years ago and appears exclusively in the film
Agito: Psychic War. Kasumi Murano is portrayed by . ==References==